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[–]bobbobbybob 2 insightful - 1 fun2 insightful - 0 fun3 insightful - 1 fun -  (2 children)

Hard vacuum is going to be an issue, but I thought we relied on conservation of momentum one we've left orbit. Your gun analogy is good, but doesn't hold true all the way down to zero pressure. The velocity at which we expel compressed gasses allows steering.

Your spaceship has a very high velocity already. It maintains that velocity through surfing the gravity well. So the steering tubes are merely used to trim that surfing line.

The moon landing is another issue completely. I was a big NASA fan, and bought the anniversary album. And then measured the shadows. Divergent shadows make me very sad.

I guess I'm not arguing that rockets don't work in a hard vacuum, since you are correct. I've now read that link, and to me, that sums it up perfectly.

For things like the ISS, there's a smarter method, https://www.airspacemag.com/multimedia/how-things-work-space-station-steering-22912477/

And I'm intrigued that they use that, since I'm pretty sure its one of the random ideas I put out onto newsgroups in the early 90s. Along with sonic weapons like the LRAD.

More on CMG here:

https://www.academia.edu/5497143/ISS_CMG_Momentum_Desaturation_Design

[–]Tom_Bombadil[S] 1 insightful - 1 fun1 insightful - 0 fun2 insightful - 1 fun -  (0 children)

Hard vacuum is going to be an issue, but I thought we relied on conservation of momentum one we've left orbit.

Satellites are real.

The 6 of 7 astronauts from the Challenger explosion are still alive, and approaching retirement age. Some deny this evidence, but given your responses I'm quite sure you won't.

The ISS may be orbiting the planet, but there's plenty of evidence that the videos are staged.
The Hairsprayed hair is hilarious to me.
I laughed out loud when I found this video. It's a gem.

I can't prove that no one is on the station, but they certainly haven't proven that anyone is up there.

It's all comedy. I hope you got a laugh. ;-)

[–]Tom_Bombadil[S] 1 insightful - 1 fun1 insightful - 0 fun2 insightful - 1 fun -  (0 children)

Your spaceship has a very high velocity already. It maintains that velocity through surfing the gravity well. So the steering tubes are merely used to trim that surfing line.

It would need to be going near escape velocity to escape to the moon. Escape velocity is ~40,000 mph. It was my understanding that the rockets were traveling at 17,000 mph for near Earth orbit.

The additional velocity required to get to the Moon to reach the edge of the "gravity well" would be tremendous.

Also, this acceleration would need to occur within the Earth's atmosphere for the rockets to function; which is unlikely...

Significant travel beyond low Earth orbit appears to be impossible using currently known technologies.

I think we're stuck...